Mercurial > octave
view scripts/specfun/pow2.m @ 31191:bb9d776eafac stable
Fix wrong color in PDF printout of some latex strings (bug #62884)
* octave-svgconvert (draw): For "rect" elements only set brush color if
necessary and eventually restore to previous color.
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
---|---|
date | Sun, 14 Aug 2022 18:24:07 +0200 |
parents | 796f54d4ddbf |
children |
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######################################################################## ## ## Copyright (C) 1995-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## This file is part of Octave. ## ## Octave is free software: you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation, either version 3 of the License, or ## (at your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {} pow2 (@var{x}) ## @deftypefnx {} {} pow2 (@var{f}, @var{e}) ## With one input argument, compute ## @tex ## $2^x$ ## @end tex ## @ifnottex ## 2 .^ x ## @end ifnottex ## for each element of @var{x}. ## ## With two input arguments, return ## @tex ## $f \cdot 2^e$. ## @end tex ## @ifnottex ## f .* (2 .^ e). ## @end ifnottex ## @seealso{log2, nextpow2, power} ## @end deftypefn function y = pow2 (f, e) if (nargin < 1) print_usage (); endif if (nargin == 1) y = 2 .^ f; else y = f .* (2 .^ e); endif endfunction %!test %! x = [3, 0, -3]; %! v = [8, 1, .125]; %! assert (pow2 (x), v, sqrt (eps)); %!test %! x = [3, 0, -3, 4, 0, -4, 5, 0, -5]; %! y = [-2, -2, -2, 1, 1, 1, 3, 3, 3]; %! z = x .* (2 .^ y); %! assert (pow2 (x,y), z, sqrt (eps)); %!error <Invalid call> pow2 ()